10 



BULLETIN 620, U. S. DEPARTMENT OF AGRICULTURE. 











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TIME IN HOURS 



Fig. 3. — Cooking curves for cooks 99, 9S, 75, 67, and 74. 1, temperature; 2, gauge pressure; 3, gas pressure; 



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Fig. 4. — Cooking curves for cooks 72, 79, 70, and 71. 1, temperature; 2, gauge pressure; 3, gas pressure; 



4, steam pressure. 



